TY - JOUR
T1 - Skin-inspired hierarchically buckled fibers with stretchable porous microarchitectures and customizable functionalities
AU - Han, Jing
AU - Xu, Bingang
AU - Li, Zihua
AU - Tang, Yun
AU - Huang, Junxian
AU - Liu, Xinlong
AU - Yang, Yujue
AU - Yan Chung, King
N1 - Funding Information:
The authors would like to acknowledge the funding support from the Research Grants Council of the Hong Kong Special Administrative Region, China (Project No. PolyU 15200421) for the work reported here.
Publisher Copyright:
© 2023 Elsevier B.V.
PY - 2023/5/15
Y1 - 2023/5/15
N2 - Advanced functional material fibers with surface porous microstructures are widely promising for smart and functional wearables owing to their unique structures and properties. However, design of advanced functional material fibers with surface hierarchically porous microstructures, high stretchability and desired functionalities is still a considerable challenge. In this study, inspired by the formed surface buckling of finger joint skin, we present a novel kind of hierarchically buckled porous microstructured fibers (HBPMFs) based on a general physicochemical strategy consisted of material systems manipulation, interfacial self-assembly, stretching-releasing control, and thermal annealing. The developed HBPMFs showed controllable skin-inspired buckling features and unique stretchable microarchitectures of porosity, and could also be facilely incorporated with functional nanomaterials to form a new kind of advanced functional material fibers that integrate desired functional nanomaterials in stretchable porous microstructures with more exposed porous surface area for higher performance. Influential factors such as polymer bricks, solutes, solvents, concentrations, fiber substrates and pre-stretching strain were also investigated. As demonstration of application, advanced functional material fibers with incorporation of TiO2 nanoparticles exhibited significantly enhanced photocatalytic performance for organic pollutants than control samples. This study provides an efficient strategy and new insights into design of a new kind of functional fiber materials with stretchable porous microstructures and customizable functionalities for advanced applications.
AB - Advanced functional material fibers with surface porous microstructures are widely promising for smart and functional wearables owing to their unique structures and properties. However, design of advanced functional material fibers with surface hierarchically porous microstructures, high stretchability and desired functionalities is still a considerable challenge. In this study, inspired by the formed surface buckling of finger joint skin, we present a novel kind of hierarchically buckled porous microstructured fibers (HBPMFs) based on a general physicochemical strategy consisted of material systems manipulation, interfacial self-assembly, stretching-releasing control, and thermal annealing. The developed HBPMFs showed controllable skin-inspired buckling features and unique stretchable microarchitectures of porosity, and could also be facilely incorporated with functional nanomaterials to form a new kind of advanced functional material fibers that integrate desired functional nanomaterials in stretchable porous microstructures with more exposed porous surface area for higher performance. Influential factors such as polymer bricks, solutes, solvents, concentrations, fiber substrates and pre-stretching strain were also investigated. As demonstration of application, advanced functional material fibers with incorporation of TiO2 nanoparticles exhibited significantly enhanced photocatalytic performance for organic pollutants than control samples. This study provides an efficient strategy and new insights into design of a new kind of functional fiber materials with stretchable porous microstructures and customizable functionalities for advanced applications.
KW - Conformal porous microstructures
KW - Customizable functionalities
KW - Functional fiber materials
KW - Interfacial self-assembly
KW - Skin-inspired buckling
UR - http://www.scopus.com/inward/record.url?scp=85151391586&partnerID=8YFLogxK
U2 - 10.1016/j.cej.2023.142606
DO - 10.1016/j.cej.2023.142606
M3 - Journal article
AN - SCOPUS:85151391586
SN - 1385-8947
VL - 464
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
M1 - 142606
ER -